AT-4
BRAKE SIGNAL CIRCUIT ..............................165
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
165
Diagnosis Procedure .............................................165
A/T INDICATOR CIRCUIT ...............................166
Description ........................................................... ..166
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
166
Diagnosis Procedure .............................................166
TROUBLE DIAGNOSIS FOR SYMPTOMS .....167
Wiring Diagram - AT - NONDTC .......................... ..167
A/T Check Indicator Lamp Does Not Come On .....170
Engine Cannot Be Started in "P" or "N" Position ...170
In "P" Position, Vehicle Moves When Pushed .......171
In "N" Position, Vehicle Moves ..............................172
Large Shock ("N" to "D" Position) ..........................173
Vehicle Does Not Creep Backward in "R" Position ..175
Vehicle Does Not Creep Forward in "D" Position ..178
Vehicle Cannot Be Started from D1 .......................180
A/T Does Not Shift: D1→ D2 ................................ ..182
A/T Does Not Shift: D2→ D3 ................................ ..184
A/T Does Not Shift: D3→ D4 ................................ ..186
A/T Does Not Shift: D4→ D5 ................................ ..188
A/T Does Not Lock-up ......................................... ..190
A/T Does Not Hold Lock-up Condition ...................192
Lock-up Is Not Released .......................................194
Engine Speed Does Not Return to Idle .................194
Cannot Be Changed to Manual Mode ...................195
A/T Does Not Shift: 5th Gear → 4th Gear ........... ..196
A/T Does Not Shift: 4th Gear → 3rd Gear ........... ..197
A/T Does Not Shift: 3rd Gear → 2nd Gear .......... ..199
A/T Does Not Shift: 2nd Gear → 1st Gear ........... ..201
Vehicle Does Not Decelerate by Engine Brake ... ..202
SHIFT CONTROL SYSTEM ............................205
Control Device Removal and Installation ............. ..205
Control Rod Removal and Installation ...................206
Adjustment of A/T Position ....................................207
Checking of A/T Position .......................................207
A/T SHIFT LOCK SYSTEM .............................208
Description ........................................................... ..208
Shift Lock System Electrical Parts Location ..........208
Wiring Diagram - AT - SHIFT .................................209
Diagnosis Procedure .............................................209
KEY INTERLOCK CABLE ...............................212
Component .......................................................... ..212
Removal and Installation .......................................212
ON-VEHICLE SERVICE ...................................215
Control Valve with TCM and A/T Fluid Tempera-
ture Sensor 2 ....................................................... .
215
Parking Component (2WD Models Only) ..............226
Rear Oil Seal .........................................................233
Revolution Sensor Component (2WD Models
Only) .....................................................................
233
AIR BREATHER HOSE ....................................239
Removal and Installation ...................................... .239
TRANSMISSION ASSEMBLY ..........................241
Removal and Installation (2WD Models) .............. .241
Removal and Installation (AWD Models) ..............243
OVERHAUL ......................................................249
Component .......................................................... .249
Oil Channel ...........................................................261
Location of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ......................... .
264
DISASSEMBLY .............................................. ..267
Disassembly ......................................................... .267
REPAIR FOR COMPONENT PARTS ..............285
Oil Pump .............................................................. .285
Front Sun Gear, 3rd One-Way Clutch ...................287
Front Carrier, Input Clutch, Rear Internal Gear .....289
Mid Sun Gear, Rear Sun Gear, High and Low Re-
verse Clutch Hub ..................................................
295
High and Low Reverse Clutch ..............................301
Direct Clutch .........................................................303
ASSEMBLY .................................................... ..306
Assembly (1) ........................................................ .306
Adjustment ............................................................320
Assembly (2) .........................................................323
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
330
General Specification ........................................... .330
Vehicle Speed at Which Gear Shifting Occurs .....330
Vehicle Speed at Which Lock-up Occurs/Releas-
es ..........................................................................
331
Stall Speed ............................................................331
Line Pressure ........................................................331
A/T Fluid Temperature Sensor ..............................332
Turbine Revolution Sensor ...................................332
Vehicle Speed Sensor A/T (Revolution Sensor) ...332
Reverse Brake ......................................................332
Total End Play .......................................................332
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AT-8
< SERVICE INFORMATION >
PRECAUTIONS
After performing each TROUBLE DIAGNOSIS, perform “DTC
(Diagnostic Trouble Code) Confirmation Procedure”.
If the repair is completed the DTC should not be displayed in
the “DTC Confirmation Procedure”.
Always use the specified brand of ATF. Refer to MA-9, "
Fluids and Lubricants".
Use lint-free paper not cloth rags during work.
After replacing the ATF, dispose of the waste oil using the methods prescribed by law, ordinance, etc.
Before proceeding with disassembly, thoroughly clean the out side of the transmission. It is important to pre-
vent the internal parts from becoming cont aminated by dirt or other foreign matter.
Disassembly should be done in a clean work area.
Use lint-free paper or towels for wiping parts clean. Common shop rags can leave fibers that could interfere
with the operation of the transmission.
Place disassembled parts in order for easier and proper assembly.
All parts should be carefully cleansed with a general purpose, non-flammable solvent before inspection or
reassembly.
Gaskets, seals and O-rings should be replaced any time the transmission is disassembled.
It is very important to perform functional tests whenever they are indicated.
The valve body contains precision parts and requires extreme care when parts are removed and serviced. Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent springs
and small parts from becoming scattered or lost.
Properly installed valves, sleeves, plugs, etc. will s lide along bores in valve body under their own weight.
Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings and
seals, or hold bearings and washers in place during assembly. Do not use grease.
Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
After overhaul, refill the transmission with new ATF.
When the A/T drain plug is removed, only some of t he ATF is drained. Old ATF will remain in torque con-
verter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer to
AT- 11 , "
Changing A/T Fluid", AT- 11 , "Checking A/T Fluid".
Service Notice or PrecautionINFOID:0000000001327125
ATF COOLER SERVICE
If ATF contains frictional material (clutches, bands, etc. ), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T fluid cooler mounted in the radiat or or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. For A/T fluid cooler cleaning procedure, refer to AT-13, "
A/T
Fluid Cooler Cleaning". For radiator replacement, refer to CO-13 (for VQ35DE), CO-40 (for VK45DE).
OBD-II SELF-DIAGNOSIS
A/T self-diagnosis is performed by the TCM in comb ination with the ECM. The results can be read through
the blinking pattern of the A/T CHECK indicator or the malfunction indicator lamp (MIL). Refer to the table on
AT-84, "
CONSULT-III Function (TRANSMISSION)" for the indicator used to display each self-diagnostic
result.
The self-diagnostic results indicated by the MIL ar e automatically stored in both the ECM and TCM memo-
ries.
Always perform the procedure on AT-38, "
OBD-II Diagnostic Trouble Code (DTC)" to complete the
repair and avoid unnecessary blinking of the MIL.
For details of OBD-II, refer to EC-54
(for VQ35DE) or EC-632 (for VK45DE).
Certain systems and components, especially those re lated to OBD, may use the new style slide-lock-
ing type harness connector. For descrip tion and how to disconnect, refer to PG-68
.
SEF217U
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TRANSMISSION ASSEMBLYAT-241
< SERVICE INFORMATION >
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TRANSMISSION ASSEMBLY
Removal and Installation (2WD Models)INFOID:0000000001327398
COMPONENTS
REMOVAL
CAUTION:
When removing the A/T assembly from engine, fi rst remove the crankshaft position sensor (POS)
from the A/T assembly.
Be careful not to damage sensor edge.
1. Disconnect the battery cabl e from the negative terminal.
2. Remove engine cover.
3. Remove A/T fluid level gauge.
4. Remove engine under cover with power tool.
5. Remove front cross bar. Refer to FSU-6, "
Removal and Installation"
6. Remove exhaust front tube and center muffler with power tool. Refer to EX-3, "Component".
7. Remove three way catalyst. Refer to EM-26, "
Removal and Installation".
8. Remove rear propeller shaft. Refer to PR-9, "
Removal and Installation".
9. Remove control rod. Refer to AT-206, "
Control Rod Removal and Installation".
1. A/T fluid charging pipe 2. O-ring 3. Engine mounting insulator (rear)
4. Rear engine mounting member 5. Copper washer 6. Fluid cooler tube
7. Bracket 8. A/T assembly 9. A/T fluid level gauge
SCIA6379E
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TRANSMISSION ASSEMBLYAT-243
< SERVICE INFORMATION >
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INSTALLATION
Install the removed parts in the reverse order of the removal, while paying attention to the following work.
When installing A/T assembly to the engine assembly, attach the fixing bolts in accordance with the following standard.
Align the positions of tightening bo lts for drive plate with those of
the torque converter, and temporarily tighten the bolts. Then,
tighten the bolts with the specified torque. Refer to "COMPO-
NENTS".
CAUTION:
Do not reuse O-ring and copper washers.
When turning crankshaft, turn it clockwise as viewed from the
front of the engine.
When tightening the tightening bolts for the torque converter
after fixing the crankshaft pulley bolts, be sure to confirm the
tightening torque of the cr ankshaft pulley mounting bolts.
Refer to EM-65, "
Removal and Installation".
After converter is installed to drive plate, rota te crankshaft several turns and check to be sure that
transmission rotates freely without binding.
Install crankshaft position sensor (POS). Refer to EM-30, "
Removal and Installation (2WD Models)".
After completing installation, check A/T fluid leakage, A/T fluid level, and the A/T positions of A/T. Refer to
AT- 11 , "
Checking A/T Fluid", AT-207, "Checking of A/T Position".
Removal and Installation (AWD Models)INFOID:0000000001327399
COMPONENTS (FOR VQ35DE)
Bolt No. 1234
Number of bolts1522
Bolt length
“”mm (in) 55 (2.17) 65 (2.56) 65 (2.56) 35 (1.38)
Tightening torque
N·m (kg-m, ft-lb) 75
(7.7, 55) 55
(5.6, 41) 47
(4.8, 35)
SCIA3949E
SCIA2288E
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AT-244
< SERVICE INFORMATION >
TRANSMISSION ASSEMBLY
COMPONENTS (FOR VK45DE)
1. A/T fluid charging pipe 2. O-ring 3. Engine mounting insulator (rear)
4. Rear engine mounting member 5. Copper washer 6. Bracket
7. Fluid cooler tube 8. Bracket 9. A/T assembly
10. A/T fluid level gauge
SCIA6425E
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TRANSMISSION ASSEMBLYAT-245
< SERVICE INFORMATION >
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REMOVAL
CAUTION:
When removing the A/T assembly from engine, fi rst remove the crankshaft position sensor (POS)
from the A/T assembly.
Be careful not to damage sensor edge.
1. Disconnect the battery cabl e from the negative terminal.
2. Remove engine cover.
3. Remove A/T fluid level gauge.
4. Remove engine under cover with power tool.
5. Remove front cross bar. Refer to FSU-6, "
Removal and Installation".
6. Remove exhaust front tube and center muffler with power tool. Refer to EX-3, "
Component".
7. Remove three way catalyst. Refer to EM-179, "
Removal and Installation".
8. Remove front propeller shaft. Refer to PR-4, "
Removal and Installation".
9. Remove rear propeller shaft. Refer to PR-9, "
Removal and Installation".
10. Remove control rod. Refer to AT-206, "
Control Rod Removal and Installation".
1. A/T fluid charging pipe 2. O-ring 3. Engine mounting insulator (rear)
4. Rear engine mounting member 5. Copper washer 6. Bracket
7. Fluid cooler tube 8. Bracket 9. Bracket
10. Bracket 11. A/T assembly 12. A/T fluid level gauge
SCIA6426E
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TRANSMISSION ASSEMBLYAT-247
< SERVICE INFORMATION >
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26. Remove A/T assembly with transfer from vehicle. Secure torque converter to prevent it from dropping.
Secure A/T assembly to a jack.
27. Remove transfer from A/T assembly. Refer to TF-40, "
Removal
and Installation".
INSPECTION
Installation and Inspection of Torque Converter
After inserting a torque converter to a A/T, be sure to check dis-
tance “A” to ensure it is within the reference value limit.
INSTALLATION
Install the removed parts in the reverse order of the removal, while paying attention to the following work.
When installing A/T assembly to the engine assembly, atta ch the fixing bolts in accordance with the following
standard.
For VQ35DE models
For VK45DE models
*1 : No.2 bolt also secures A/T fluid charging pipe and washer.
*2 : No.4 bolt also secures bracket.
(A) : A/T to engine
SCIA2203E
Distance “A”
VQ35DE models : 25.0 mm (0.98 in) or more
VK45DE models : 22.0 mm (0.87 in) or more
SAT017B
Bolt No. 1234
Number of bolts1521
Bolt length
“”mm (in) 55 (2.17) 65 (2.56) 35 (1.38) 40 (1.57)
Tightening torque
N·m (kg-m, ft-lb) 75
(7.7, 55) 47
(4.8, 35) 34
(3.5, 25)
SCIA4600E
Bolt No. 1 2*134*2
Number of bolts 4 1 4 1
Bolt length mm (in) 70 (2.76) 70 (2.76) 65 (2.56) 70 (2.76)
Tightening torque
N·m (kg-m, ft-lb) 11 3
(12, 83) 74.0
(7.5, 55) 11 3
(12,83)
SCIA7756E
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AT-248
< SERVICE INFORMATION >
TRANSMISSION ASSEMBLY
Align the positions of tightening bolts for drive plate with those ofthe torque converter, and temporarily tighten the bolts. Then,
tighten the bolts with the specified torque. Refer to "COMPO-
NENTS (FOR VQ35DE)" or "COMPONENTS (FOR VK45DE)".
CAUTION:
Do not reuse O-ring and copper washers.
When turning crankshaft, turn it clockwise as viewed from the
front of the engine.
When tightening the tightening bolts for the torque converter
after fixing the crankshaft pulley bolts, be sure to confirm the
tightening torque of the crankshaft pulley mounting bolts.
Refer to EM-65, "
Removal and Installation" (for VQ35DE) or
EM-200, "
Removal and Installation" (for VK45DE)
After converter is installed to drive plate, rota te crankshaft several turns and check to be sure that
transmission rotates fr eely without binding.
Install crankshaft position sensor (POS). Refer to EM-35, "
Component (AWD Models)" (for VQ35DE) or EM-
183, "Component" (for VK45DE).
After completing installation, check A/T fluid leakage, A/T fluid level, and the positions of A/T. Refer to AT- 11 ,
"Checking A/T Fluid", AT-207, "Checking of A/T Position".
SCIA2010E
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